Printing-frame.



No. 785,373 PATENTED MAR. 21, 1905.v

E. R. PETRIE.

PRINTING FRAME.

APPLICATION FILED JAN. 10, 1905.

2 SHEETS-SHEET l IN YEN TOR m fi'da ard E 714778 f H Mm ATTORNEYS Q No.785,373. PATENTED MAR. 21, 1905. E. R. PETRIE.

PRINTING FRAME.

APPLICATION FILED JAN. 10, 1906.

2 SHBETSSHEET 2.

Z2 Z f -Z af #0,

I l I I a4 Z3 622 a5 WITNESSES INVENTOR dward/P. Pei/1 9 ATTORNEYSUNITED STATES Patented March 21, 1905.

EDlVARD R. PETRIE, OF BROOKLYN, NElV YORK.

PRINTING-FRAME.

SPECIFICATION forming part of Letters Fatent No. 785,373, dated March21, 1905.

Application filed January 10,1905. Serial No. 240,491.

To all whom it may concern:

Be it known that I, EDWARD R. lu'rmn, a citizen of the United States,residing at Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Printing-Frames, ofwhich the following is a specification, such as will enable thoseskilled in the art to which it appertains to make and use the same.

This invention relates to a printing frame or device for use in printingfrom negatives comprising plates or iilm strips and also for use inprintingblue-prints or other copies from drawings and the like; and theobject thereof is to provide an improved device of the class specifiedwhich may be used for any of the above-named purposes, a further objectbeing to provide a device of this class which consists of two parts, oneof which is adapted to be folded around the other and to lie flush witheither side thereof; and with these and other objects in view theinvention consists in a printing frame or device constructed ashereinafter described and claimed.

The invention is fully disclosed in the following specification, ofwhich the accompanying drawings form a part, in which the separate partsof my improvement are designated by suitable reference characters ineach of the views, and in whicl Figure l is a perspective view of myimproved printing-frame, showing the frame open and showing the parts inone of the positions in which they are operated; Fig. 2, a similar view,showing the parts in a position the reverse of that shown in Fig. 1;Fig. 3, a longitudinal section showing the parts in a closed position;Fig. 4, a view similar to Fig. 3, showing the parts in a position thereverse of that shown in Fig. 3; Fig. 5, a plan view of the basic partof the device and showing one position of the various members used inconnection therewith, and Fig. 6 a section on the line 6 6 of Fig. 5,but showing the complete device.

In the practice of my invention I provide a printing-frame whichconsists of two parts a and I), and for the purpose of this descriptionthe part a will be called a basic member." The parts (1/ and 7) are eachprovided at one end with a handle member 0 and are hinged together atthe opposite end, as shown at (Z, by means of a double hinge, wherebyone of the parts may be folded around the other or so as to lie i'iushon either side thereof. The part b is provided on one side thereof andcontrally thereof with a boss or projection 6*, which in theconstruction shown is rectangular in form, and on the other side thereofwith a similar boss or projection I), which in the construction shown isalso rectangular in form and which is longer than the boss or projectionZ). The part a is provided with a central opening a, which is alsopreferably rectangular in form, and at one side thereof is arabbet-groove cf, which extends entirely around the central opening a"and is adapted to receive the boss or projection 7)" on the part Z), andat the other side of the opening a" is another rabbet-groove a,substantially of the same transverse dimension as the rabbetgroove (15,and around the rabbet-groove a is another groove (0", which is widerthan the groove (0 and the end dimensions of which in the constructionshown are greater than the side dimensions thereof. That side of thebasic member (L in which the rabbet-groove c is formed is intended foruse in daylight and for printing blue-prints or other copies of adrawing or other picture, while the other side of the basic member minwhich the grooves 02 and w" are formed, is intended for use in printingfrom negative plates or films.

In using the side of the basic member a for printing blue-prints andother copies from drawings and other pictures I provide a transverseplate a, which is of such dimensions as to be placed over the centralopening a. and the ends of which will rest in the groove (1 and thebasic member or plate a is provided at the opposite sides of saidopening with spring-clips c and the plate 0 is provided with alongitudinal spring a, the ends of which are adapted to be insertedunder the clips 0 in the manner of other devices of this class.

in Fig. 3 of the drawingsl have shown the preferred position of theseparate parts of the device in copying drawings or other pictures indaylight or by sunlight, and in this operation a glass h is employed andthe drawing or picture, together with a sensitized sheet 7, is alsoplaced in position in the usual manner, and the progress of theoperation of copying the drawing or picture may be examined at any timeby separating the parts (6 and I and by raising the free edge of thesensitized sheet in the usual manner, and in this operation thetransverse plate 4 holds the drawing and the sensitized sheet in properrelative position, as in other devices of this class.

In Fig. 4 I have shown the separate parts of the device in the preferredposition when a picture is to be made from a negative, and in this formof construction the plate it is supposed to represent the negative, saidplate being composed of glass, and the sensitized sheet is placedthereon in the usual manner and is held in position by the part 7). Itwill be understood, however, that either side of the part a, may be usedfor making pictures, either from negatives or by copying drawings orother pictures by sunlight, and various other processes of using thedevice herein shown and described will suggest themselves to any onefamiliar with the operation of devices of this class.

The groove (1 in one side of the basic member w or in the side thereofin which the groove (0' is formed is provided in order to adapt thedevice for use in copying only a part of a picture, and when it isdesired to do this the glass panel 71 may be turned into the positionshown in Fig. 3, in which position the ends thereof rest in the sideportion of the groove (1 instead of the groove (1), and in this way aportion of a picture may be copied or a portion of a negative printed,and it will be understood that the glass panel it may be adjusted to anydesired point longitudinally of the basic member a.

It will be understood, of course, that the parts a and I) may be made ofany desired dimensions, as may also the central opening a in the part a,and by means of the construction of my improved printing-frame the wholeor any part of a negative may be printed, or the whole or any part of adrawing or other picture may be copied.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A printing-frame, comprising two separate parts hinged together atone end, one of said parts being adapted to be folded from one side tothe other of the other part, one of said parts being also provided witha central opening at each side of which is a rabbet-groove, and theother part being provided on its opposite side with bosses orprojections adapted to enter said grooves, substantially as shown anddescribed.

2. A device of the class described, comprising oblong plates hingedtogether at one end, one of said parts being adapted to be folded aroundthe other so as to lie flush with either side thereof, one of said partsbeing also provided with a central opening around which at one side ofsaid part is a rabbet-groove and around which at the opposite side ofsaid part are two rabbet-grooves one of which incloses the other and isof greater dimensions, and the other part being provided at its oppositeside with bosses or projections adapted to enter the grooves at theopposite sides of said opening, substantially as shown and described.

3. A device of the class described, comprising oblong plates hingedtogether at one end, one of said parts being adapted to be folded aroundthe other so as to lie flush with either side thereof, one of said partsbeing also provided with a central opening around which at one side ofsaid part is a rabhet-groove and around which at the opposite side ofsaid part are two rabbet-grooves one of which incloscs the other and isof greater dimensions, and the other part being provided at its oppositeside with bosses or projections adapted to enter the grooves at theopposite sides of said opening, and one of which is of greaterdimensionsthan the other, substantially as shown and described.

4. A device of the class described, comprising two parts consisting ofoblong plates hinged together at one end so that one of said parts maybe folded around the other and lie flush with either side thereof, oneof said parts being also provided with a central opening around which ateach side of said parts is a rabbet-groove, the other part beingprovided with bosses or projections adapted to enter said grooves andone of which is of less dimensions than the other, and a transverseplate adapted to be secured in one of said firstnamed grooves,substantially as shown and described.

A device of the class described, comprising two plates hinged togetherat one end in such a manner that one of said plates may be foldedentirely around the other so as to lie flush with either side thereof,one of said plates being provided with a central opening around which isa groove and the other with a boss or projection adapted to lit in saidgroove, substantially as shown and described.

6. A device of the class described, com prising two plates hingedtogether at one end in such a manner that one of said plates may befolded entirely around the other so as to lie flush with either sidethereof, one of said plates being provided with a central opening ITOaround which is a groove and the other with l ence of the subscribingWitnesses, this 9th day a boss or pro ection adapted to fit in said ofJanuary, 1905.

groove, said plates being also provided at their J r 3 free ends Withhandles, substantially as shown AR D 1 ETRHL and described. Witnesses:

In testimony that I claim the foregoing as F. A. STEWART,

my invention I have signed my name, in pres- O. J. KLEIN.

